mainly because what they're doing is so new I (possibly obviously) haven't done enough research in the area, but it seems like there are potentially showstoppe

mainly because what they're doing is so new I (possibly obviously) haven't done enough research in the area, but it seems like there are potentially showstopper questions about how to stop people gaming the system. The reddit link also questioned how much of MaidSafe is, in effect, security through obscurity. One thing that can be said - it's definitely interesting! How can you have a cryptocurrency without communication? Exactly - that's kinda what I'm asking! :) Another rephrasing: is it possible to have some bitcoin-equivalent token sat on your computer which you can exchange for goods and services without consulting anyone else? As far as I can tell, it's the double-spending problem that's the killer.